I use Pyridine-4-boronic acid, CAS 1692-15-5, as the standard name for a heteroaryl boronic acid used primarily as a building block in carbon–carbon bond-forming chemistry. Buyers should confirm the identity, assay, water content, physical form, analytical package, packaging, and storage instructions before placing an order. The compound has the molecular formula C5H6BNO2 and a molecular weight of approximately 122.92 g/mol, which helps laboratories calculate reaction quantities and compare supplier documentation.
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At Maison Chemical, I support customers by clarifying product specifications, application requirements, sample needs, packaging preferences, and export documentation before quotation. Because availability, batch size, lead time, and commercial terms can vary, I recommend treating each request as a technical sourcing project rather than relying on a generic catalog description.
Pyridine-4-boronic acid is a pyridine-ring compound bearing a boronic acid group at the 4-position. Its heteroaromatic nitrogen can influence solubility, coordination behavior, and reaction handling compared with simpler aryl boronic acids. The boronic acid functionality is valued because it can participate in Suzuki–Miyaura coupling and related synthetic transformations when suitable reaction conditions and partners are selected.
For purchasing purposes, I treat CAS 1692-15-5 as the primary identity reference, but I do not use the CAS number alone as a complete quality specification. A reliable order should also define the product name, molecular formula, molecular weight, requested assay, appearance or physical form, packaging, and required documents. If the material is intended for a regulated or scale-up project, the buyer should additionally confirm impurity limits and the analytical method used for release.
Researchers may use Pyridine-4-boronic acid to introduce a pyridyl fragment into more complex molecules. This is relevant when a project needs a nitrogen-containing aromatic ring that can modify polarity, binding interactions, or downstream synthetic flexibility. The suitability of the material depends on the complete reaction design, including the electrophilic coupling partner, catalyst system, solvent, base, temperature, and purification strategy.
Fine chemical developers can evaluate this compound as an intermediate for multi-step synthesis. In these projects, consistent identity and impurity control are important because a minor impurity may carry through several stages or affect crystallization and purification. I recommend requesting a representative certificate of analysis when the compound will be used in a route with narrow impurity tolerances.
For process teams, the best supplier is not necessarily the one offering the lowest initial price. A useful supplier should be able to discuss batch availability, packaging scale, repeat supply, documentation, and shipment conditions. Before scale-up, I recommend confirming whether the quoted material is from regular production stock, a new manufacturing batch, or a custom preparation, because these situations can have different lead times and commercial conditions.
The first specification is chemical identity. I normally ask for confirmation of the CAS number, molecular formula, molecular weight, product name, and available analytical evidence such as NMR, IR, HPLC, LC-MS, or other appropriate tests. The exact test combination should match the supplier’s quality system and the buyer’s application requirements rather than being assumed in advance.
| Specification area | What I recommend confirming |
|---|---|
| Identity | CAS 1692-15-5, chemical name, formula, molecular weight, and analytical identification |
| Purity | Assay method, reported result, impurity profile, and whether the value is batch-specific |
| Physical properties | Appearance, physical form, color description, and any stated decomposition or stability observations |
| Moisture and handling | Water content where relevant, container closure, and precautions for exposure to air or humidity |
| Documentation | Certificate of analysis, safety data sheet, technical data, packing list, and export documents as applicable |
The molecular weight of approximately 122.92 g/mol is useful for laboratory calculations. For example, 10.0 mmol corresponds to approximately 1.229 g before allowing for assay correction, solvent content, or weighing error. I advise chemists to apply the actual batch assay when accurate stoichiometry matters, rather than assuming that nominal purity and theoretical molecular weight provide the whole calculation.
I begin supplier discussions by asking whether the material is for route scouting, analytical research, process development, or commercial manufacturing. A research screen may prioritize rapid availability and a practical pack size, while a scale-up program may prioritize repeatability, traceability, and supply continuity. The same chemical name can therefore represent different purchasing requirements for different teams.
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A higher stated assay may be useful, but it is not automatically the only criterion that matters. Some projects are more sensitive to water, inorganic residues, regioisomeric impurities, or catalyst poisons than to the headline assay value. I recommend discussing the reaction sensitivity with the supplier and requesting the relevant batch data before choosing a specification that is unnecessarily expensive or insufficiently controlled.
Packaging should protect the material from avoidable contamination and environmental exposure during storage and transport. The appropriate package depends on order quantity, destination, handling requirements, and the supplier’s validated packing practice. I also recommend checking whether the shipping classification, customs documents, and SDS are suitable for the destination country before dispatch.
I recommend keeping Pyridine-4-boronic acid in a tightly closed, properly labeled container in a cool, dry location, following the supplier’s current SDS and product-specific storage instructions. The container should be protected from unnecessary humidity, heat, incompatible chemicals, and repeated opening. Storage conditions should be reviewed by the receiving laboratory because local safety procedures and packaging formats may affect the final handling plan.
When opening a container, I suggest minimizing exposure time and using clean, dry tools. If the material shows an unexpected change in appearance, clumping, discoloration, or performance, the laboratory should pause use and contact the supplier with the batch number and relevant observations. I do not recommend assigning a universal shelf-life or exact storage temperature unless it is stated in the supplier’s current technical documentation.
Price is usually influenced by pack size, requested purity, production route, analytical requirements, packaging, destination, and order frequency. MOQ may differ between laboratory packs, stock quantities, and custom or scheduled production. For this reason, I provide commercial terms only after confirming the required quantity, destination, specification, and documentation package.
Lead time should also be treated as a quotation item rather than a fixed product attribute. A stocked item, a material requiring additional quality review, and a custom batch can have different timelines. Buyers can reduce delays by sending the target quantity, delivery country, preferred Incoterm if known, required documents, and desired arrival date in the first inquiry.
I look for a supplier that can clearly distinguish nominal product information from batch-specific results. The supplier should be able to explain what is tested, which documents are available, and whether the requested specification can be maintained across repeat orders. Clear answers are especially important when the compound is entering a multi-step synthesis or a customer qualification program.
Maison Chemical supports B2B inquiries by coordinating product information, quotation details, packaging discussions, documentation, and shipment planning. I encourage buyers to provide their actual use case instead of asking only for a price, because application information helps the supplier recommend a realistic specification and supply format. Final availability and terms remain subject to product confirmation and order review.
Pyridine-4-boronic acid CAS 1692-15-5 is a useful heteroaryl building block for synthetic chemistry, especially when a pyridyl group is required in a coupling or intermediate-development route. The right purchase decision depends on verified identity, suitable assay and impurity control, appropriate storage, complete documentation, and a supply plan that matches the project stage. I recommend confirming the technical specification before comparing quotations.
For a focused inquiry to Maison Chemical, send the required quantity, target purity or application, destination country, preferred packaging, requested documents, and delivery schedule. I can then help review the specification, confirm supply feasibility, and prepare a B2B quotation for your Pyridine-4-boronic acid requirement.
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